Axio Imager 2
OPERATION
ZEISS
Illumination and contrast methods
01/2016
430000-7544-001
163
The specimen field size and objective aperture change after every objective change. The
centering may also alter slightly. Therefore, readjust the luminous-field diaphragm and aperture
diaphragm to obtain optimum results.
For < 10x objectives, the front lens of the universal condenser (if used) must be folded out and
the aperture diaphragm fully opened. In the case of such large fields, the luminous-field
diaphragm can also be used for better contrasting by reducing its opening to a certain range.
Avoid closing it too far, otherwise this will impair the evenness of the field of view illumination.
(4)
Setting the height stop on the
condenser carrier
•
Loosen the fastening screw of the height stop
(Fig. 192/
2
) using an SW 3 ball-headed
screwdriver.
•
Use the focusing drive to bring the specimen
into sharp focus.
•
Close the luminous-field diaphragm and focus it
by turning the vertical control (Fig. 192/
3
) of the
condenser.
•
Carefully raise the condenser slightly without
lifting the specimen.
•
Tighten fastening screw (Fig. 192/
2
) of the
height stop.
Fig. 192
Setting the height stop on the
condenser carrier
